4x4 Hybrids - invisible View - Photo 01

This see-through illustration from GM shows the mild hybrid componentry used on the Silverado/Sierra pickups. You can see the starter/generator between the engine and transmission, and also how GM has routed power lines to the bed, turning the truck into a generator capable of producing 2,400 watts of 120-volt power. With the truck's 32-gallon fuel tank, it'll run (at idle) as a generator for 32 hours before needing fuel.